Portsmouth Rhode Island Weather Almanac  
Thursday, November 11, 2021  
Partly Cloudy to Mostly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    November 11, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   57   68   53   +4   68   in 2020   37   in 1926  
Minimum Temperature   36   59   39   -3   59   in 2020   16   in 1956  
Average Temperature   47   64   46   +1   64   in 2020   31   in 2017  
 Month Avg Max Temperature   56.8   62.6   54.6   +2.2   65.3   in 1975   46.2   in 1992  
Month Avg Min Temperature   38.3   46.0   41.0   -2.7   48.0   in 2015   32.2   in 1980  
Month Average Temperature   47.7   54.6   47.9   -0.2   56.3   in 1975   40.2   in 1992  
High Heat Index                                      
Low Wind Chill   36   58   33   +3             5   in 1956  
HDD   18   1   19   -1   34   in 2017   1   in 2020  
Month HDD   190   114   188   +2   273   in 1992   96   in 1975  
Season HDD   380   442   584   -204   830   in 1992   378   in 2017  
CDD   0   0   0   +0       in         in    
Month CDD   0   0   0   +0   0   in         in    
Year CDD   795   871   609   +186   871   in 2020   290   in 1902  
Maximum Dew Point   44   63   45   -1   64   in 2002   16   in 1957  
Minimum Dew Point   29   57   31   -2   57   in 2020   7   in 2017  
Average  Dew Point   37   60   38   -1   60   in 2020   13   in 2017  
 Month Avg Max Dew Point   42.7   52.1   46.0   -3.3   53.7   in 1977   33.5   in 1973  
Month Avg Min Dew Point   30.9   39.4   33.0   -2.1   43.8   in 2015   20.5   in 1965  
Month Average Dew Point   37.1   45.9   39.5   -2.5   49.0   in 2015   28.0   in 1973  
Precipitation   .00   .09   .13   -.13   1.57   in 1991            
One Hour   .00   .04           .33   in 1991            
Hourly Rate   .00   .14           .14   in 2020            
Month Precipitation   .01   1.06   1.43   -1.42   6.53   in 1969   .00   in 1917  
Year Precipitation   44.01   32.34   38.79   +5.22   52.79   in 1998   21.93   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.4   in 1901       in    
Snow Depth   0   0           T   in 1977       in    
Month Snow   0.0   0.0   0.0   +0.0   2.8   in 1894       in    
Season Snow   0.0   0.6   0.0   +0.0   2.8   in 1894       in    
    November 11, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   77%   97%   87%   -10%   100%   in 2003   54%   in 1957  
Minimum Humidity   39%   86%   58%   -19%   91%   in 1991   29%   in 1961  
Average Humidity   58%   92%   73%   -15%   96%   in 1987   44%   in 1957  
Maximum Barometer   30.36   30.14   30.17   +00.19   30.65   in 1957   29.58   in 1983  
Minimum Barometer   30.23   29.92   29.88   +00.35   30.44   in 2012   28.93   in 1983  
Average Barometer   30.30   30.03   30.03   +00.27   30.49   in 1957   29.26   in 1983  
Average Wind   6.5   8.7   8.5   -2.0   18.8   in 1987   1.7   in 1978  
Direction   ESE   SW   N       N         NE        
High Wind Gust   22   26   26   -4   51   in 1991   10   in 1952  
Direction   ESE   SW   NW       NE         NW        
Maximum Water Temp   58.3   59.0   54.6   +3.7   59.0   in 2020   48.9   in 2010  
Minimum Water Temp   57.2   57.6   52.3   +4.9   57.6   in 2020   46.9   in 2010  
Average Water Temp   57.8   58.3   53.4   +4.3   58.3   in 2020   47.9   in 2010  
Sunrise/ AM Twilight   6:28:07 AM   6:00:11 AM            
Sunset / PM Twilight   4:30:31 PM   4:58:26 PM            
Length Of Day   10:02:24                          
Special Conditions   None                              
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